Spectracide Ready-to-use Weed and Grass Killer kills more than 155 types of weeds on contact with visible results in as little as three hours. This herbicide enters plants through the leaves and moves down to the roots, ensuring that the entire plant is eliminated. Use on patios and walkways and use around fences, trees, flower beds, shrubs and other areas in your yard. (Do not spray on lawns, trees, flowers or shrubs). Active ingredients: diquat dibromide, fluazifop-p-butyl and dicamba, dimethylamine salt. 1.33-gal. ready-to-use jug has easy delivery system. Ready-to-use sprayer can be refilled and reused with Spectracide Weed and Grass Killer 32-oz. concentrate.